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Sullivan MV, Nanalal S, Dean BE, Turner NW. Molecularly imprinted polymer hydrogel sheets with metalloporphyrin-incorporated molecular recognition sites for protein capture. Talanta 2024; 266:125083. [PMID: 37598443 DOI: 10.1016/j.talanta.2023.125083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/22/2023]
Abstract
Metalloporphyrins are often found in nature as coordination recognition sites within biological process, and synthetically offer the potential for use in therapeutic, catalytic and diagnostic applications. While porphyrin containing biological recognition elements have stability limitations, molecularly imprinted polymers bearing these structures offer an alternative with excellent robustness and the ability to work in extreme conditions. In this work, we synthesised a polymerizable porphyrin and metalloporphyrin and have incorporated these as co-monomers within a hydrogel thin-sheet MIP for the specific recognition of bovine haemoglobin (BHb). The hydrogels were evaluated using Scatchard analysis, with Kd values of 10.13 × 10-7, 5.30 × 10-7, and 3.40 × 10-7 M, for the control MIP, porphyrin incorporated MIP and the iron-porphyrin incorporated MIP, respectively. The MIPs also observed good selectivity towards the target protein with 73.8%, 77.4%, and 81.2% rebinding of the BHb target for the control MIP, porphyrin incorporated MIP and the iron-porphyrin incorporated MIP, respectively, compared with the non-imprinted (NIP) counterparts. Specificity was determined against a non-target protein, Bovine Serum Albumin (BSA). The results indicate that the introduction of the metalloporphyrin as a functional co-monomer is significantly beneficial to the recognition of a MIP, further enhancing MIP capabilities at targeting proteins.
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Affiliation(s)
- Mark V Sullivan
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, United Kingdom; Department of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, United Kingdom
| | - Sakshi Nanalal
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, United Kingdom
| | - Bethanie E Dean
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, United Kingdom; Department of Chemistry, University of Warwick, Library Road, Coventry, CV4 7AL, United Kingdom
| | - Nicholas W Turner
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, United Kingdom; Department of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, United Kingdom.
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Stephen AN, Dennison SR, Holden MA, Reddy SM. Rapid sub-nanomolar protein determination in serum using electropolymerized molecularly imprinted polymers (E-MIPs). Analyst 2023; 148:5476-5485. [PMID: 37767770 DOI: 10.1039/d3an01498c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Rapid detection of biologicals is important for a range of applications such as medical screening and diagnostics. Antibodies are typically employed for biosensing with high sensitivity and selectivity but can take months to prepare. Here, we investigate electropolymerized molecularly imprinted polymers (E-MIPs), which are produced in minutes as alternative-antibody rapid biosensors for the selective recognition of model proteins bovine haemoglobin (BHb) and bovine serum albumin (BSA). We evaluated two disposable screen-printed electrodes (SPE) designated AT-Au and BT-Au based on their different annealing temperatures. E-MIPs for BHb demonstrated an imprinting factor of 146 : 1 at 1 nM and 12 : 1 at 0.1 nM, showing high effectiveness of E-MIPs compared to their control non-imprinted polymers. The BHb imprinted E-MIP, when tested against BSA as a non-target protein, gave a selectivity factor of 6 : 1 for BHb. Sensor sensitivity directly depended on the nature of the SPE, with AT-Au SPE demonstrating limits of detection in the sub-micromolar range typically achieved for MIPs, while BT-Au SPE exhibited sensitivity in the sub-nanomolar range for target protein. We attribute this to differences in electrode surface area between AT-Au and BT-Au SPEs. The E-MIPs were also tested in calf serum as a model biological medium. The BT-Au SPE MIPs detected the presence of target protein in <10 min with an LOD of 50 pM and LOQ of 100 pM, suggesting their suitability for protein determination in serum with minimal sample preparation. Using electrochemical impedance spectroscopy, we determine equilibrium dissociation constants (KD) for E-MIPs using the Hill-Langmuir adsorption model. KD of BHb E-MIP was determined to be 0.86 ± 0.11 nM.
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Affiliation(s)
- A N Stephen
- Department of Chemistry, UCLan Centre for Smart Materials, School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK.
| | - S R Dennison
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK
| | - M A Holden
- Department of Chemistry, UCLan Centre for Smart Materials, School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK.
| | - S M Reddy
- Department of Chemistry, UCLan Centre for Smart Materials, School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK.
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Wardani NI, Kangkamano T, Wannapob R, Kanatharana P, Thavarungkul P, Limbut W. Electrochemical sensor based on molecularly imprinted polymer cryogel and multiwalled carbon nanotubes for direct insulin detection. Talanta 2023; 254:124137. [PMID: 36463801 DOI: 10.1016/j.talanta.2022.124137] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
Insulin is the polypeptide hormone that regulates blood glucose levels. It is used as an indicator of both types of diabetes. An electrochemical insulin sensor was developed using a gold electrode modified with carboxylated multiwalled carbon nanotubes (f-MWCNTs) and molecularly imprinted polymer (MIP) cryogel. The MIP provided specific recognition sites for insulin, while the macropores of the cryogel promoted the mass transfer of insulin to the recognition sites. The f-MWCNTs increased the effective surface area and conductivity of the sensor and also reduced the potential required to oxidize insulin. Insulin oxidation was directly measured in a flow system using square wave voltammetry. This MIP cryogel/f-MWCNTs sensor provided a linear range of 0.050-1.40 pM with a very low limit of detection (LOD) of 33 fM. The sensor exhibited high selectivity and long-term stability over 10 weeks of dry storage at room temperature. The results of insulin determination in human serum using the sensor compared well with the results of the Elecsys insulin assay. The developed MIP sensor offers a promising alternative for the diagnosis and treatment of diabetes.
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Affiliation(s)
- Nur Indah Wardani
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Tawatchai Kangkamano
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Department of Chemistry, Faculty of Science, Thaksin University (Phatthalung Campus), Papayom, Phatthalung, 93110, Thailand
| | - Rodtichoti Wannapob
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Proespichaya Kanatharana
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Panote Thavarungkul
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Warakorn Limbut
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
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Tse Sum Bui B, Mier A, Haupt K. Molecularly Imprinted Polymers as Synthetic Antibodies for Protein Recognition: The Next Generation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206453. [PMID: 36650929 DOI: 10.1002/smll.202206453] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Molecularly imprinted polymers (MIPs) are chemical antibody mimics obtained by nanomoulding the 3D shape and chemical functionalities of a desired target in a synthetic polymer. Consequently, they possess exquisite molecular recognition cavities for binding the target molecule, often with specificity and affinity similar to those of antigen-antibody interactions. Research on MIPs targeting proteins began in the mid-90s, and this review will evaluate the progress made till now, starting from their synthesis in a monolith bulk format through surface imprinting to biocompatible soluble nanogels prepared by solid-phase synthesis. MIPs in the latter format will be discussed more in detail because of their tremendous potential of replacing antibodies in the biomedical domain like in diagnostics and therapeutics, where the workforce of antibodies is concentrated. Emphasis is also put on the development of epitope imprinting, which consists of imprinting a short surface-exposed fragment of a protein, resulting in MIPs capable of selectively recognizing the whole macromolecule, amidst others in complex biological media, on cells or tissues. Thus selecting the 'best' peptide antigen is crucial and in this context a rational approach, inspired from that used to predict peptide immunogens for peptide antibodies, is described for its unambiguous identification.
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Affiliation(s)
- Bernadette Tse Sum Bui
- Université de Technologie de Compiègne, CNRS Laboratory for Enzyme and Cell Engineering, Rue du Docteur Schweitzer, CS 60319, Compiègne, 60203 Cedex, France
| | - Alejandra Mier
- Université de Technologie de Compiègne, CNRS Laboratory for Enzyme and Cell Engineering, Rue du Docteur Schweitzer, CS 60319, Compiègne, 60203 Cedex, France
| | - Karsten Haupt
- Université de Technologie de Compiègne, CNRS Laboratory for Enzyme and Cell Engineering, Rue du Docteur Schweitzer, CS 60319, Compiègne, 60203 Cedex, France
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5
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Ferreira VRA, Azenha MA, Pereira CM, Silva AF. Molecularly Imprinted Methyl-Modified Hollow TiO 2 Microspheres. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238510. [PMID: 36500600 PMCID: PMC9735797 DOI: 10.3390/molecules27238510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/18/2022] [Accepted: 11/28/2022] [Indexed: 12/07/2022]
Abstract
The possibility of generating organically modified hollow TiO2 microspheres via a simple sol-gel synthesis was demonstrated for the first time in this work. A mixture of titania precursors, including an organically modified precursor, was used to obtain methyl-modified hollow TiO2 microspheres selective for bilirubin by the molecular imprinting technique (Methyl-HTM-MIM). Methyl-HTM-MIM were prepared by a sol-gel method using titanium (IV) isopropoxide (TTIP), and methyltitanium triisopropoxide (MTTIP) as precursors. Two ratios of titania precursors were tested (1/6 and 1/30 molMTTIP/molTTIP). With the characterization results obtained by the SEM and ATR-FTIR techniques, it was possible to establish that only the 1/30 molMTTIP/molTTIP ratio allowed for the preparation of hollow spheres with a reasonably homogeneous methylated-TiO2 shell. It was possible to obtain a certain degree of organization of the hybrid network, which increased with calcination temperatures. By adjusting isothermal adsorption models, imprinting parameters were determined, indicating that the new methylated microspheres presented greater selectivity for bilirubin than the totally inorganic hollow TiO2 microspheres. The effectiveness of the molecular imprinting technique was proven for the first time in an organically modified titania material, with imprinting factor values greater than 1.4, corresponding to a significant increase in the maximum adsorption capacity of the template represented by the molecularly imprinted microspheres. In summary, the results obtained with the new methyl-HTM-MIM open the possibility of exploring the application of these microspheres for selective sorption (separation or sensing, for example) or perhaps even for selective photocatalysis, particularly for the degradation of organic compounds.
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6
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El Sharif HF, Dennison SR, Tully M, Crossley S, Mwangi W, Bailey D, Graham SP, Reddy SM. Evaluation of electropolymerized molecularly imprinted polymers (E-MIPs) on disposable electrodes for detection of SARS-CoV-2 in saliva. Anal Chim Acta 2022; 1206:339777. [PMID: 35473858 PMCID: PMC8974637 DOI: 10.1016/j.aca.2022.339777] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/18/2022] [Accepted: 03/25/2022] [Indexed: 02/07/2023]
Abstract
We investigate electropolymerized molecularly imprinted polymers (E-MIPs) for the selective recognition of SARS-CoV-2 whole virus. E-MIPs imprinted with SARS-CoV-2 pseudoparticles (pps) were electrochemically deposited onto screen printed electrodes by reductive electropolymerization, using the water-soluble N-hydroxmethylacrylamide (NHMA) as functional monomer and crosslinked with N,N'-methylenebisacrylamide (MBAm). E-MIPs for SARS-CoV-2 showed selectivity for template SARS-CoV-2 pps, with an imprinting factor of 3:1, and specificity (significance = 0.06) when cross-reacted with other respiratory viruses. E-MIPs detected the presence of SARS-CoV-2 pps in <10 min with a limit of detection of 4.9 log10 pfu/mL, suggesting their suitability for detection of SARS-CoV-2 with minimal sample preparation. Using electrochemical impedance spectroscopy (EIS) and principal component analysis (PCA), the capture of SARS-CoV-2 from real patient saliva samples was also evaluated. Fifteen confirmed COVID-19 positive and nine COVID-19 negative saliva samples were compared against the established loop-mediated isothermal nucleic acid amplification (LAMP) technique used by the UK National Health Service. EIS data demonstrated a PCA discrimination between positive and negative LAMP samples. A threshold real impedance signal (ZRe) ≫ 4000 Ω and a corresponding charge transfer resistance (RCT) ≫ 6000 Ω was indicative of absence of virus (COVID-19 negative) in agreement with values obtained for our control non-imprinted polymer control. A ZRe at or below a threshold value of 600 Ω with a corresponding RCT of <1200 Ω was indicative of a COVID-19 positive sample. The presence of virus was confirmed by treatment of E-MIPs with a SARS-CoV-2 specific monoclonal antibody.
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Affiliation(s)
- H F El Sharif
- Department of Chemistry, UCLan Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom
| | - S R Dennison
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom
| | - M Tully
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - S Crossley
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - W Mwangi
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - D Bailey
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - S P Graham
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - S M Reddy
- Department of Chemistry, UCLan Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom.
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7
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Roushani M, Farokhi S, Rahmati Z. erDevelopment of a dual-recognition strategy for the Aflatoxin B1 detection based on a hybrid of aptamer-MIP using a Cu2O NCs/GCE. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107328] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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8
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Sagawa T, Oishi M, Yataka Y, Sato R, Iijima K, Hashizume M. Control of the molecular permeability of polysaccharide composite films utilizing a molecular imprinting approach. Polym J 2022. [DOI: 10.1038/s41428-021-00605-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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9
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El Sharif HF, Giosia F, Reddy SM. Investigation of polyacrylamide hydrogel-based molecularly imprinted polymers using protein gel electrophoresis. J Mol Recognit 2021; 35:e2942. [PMID: 34697843 DOI: 10.1002/jmr.2942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 11/06/2022]
Abstract
In conjunction with polyacrylamide gel electrophoresis (PAGE), molecular imprinting methods have been applied to produce a multilayer mini-slab in order to evaluate how selectively and specifically a hydrogel-based molecularly imprinted polymer (MIP) binds bovine haemoglobin (BHb, ~64.5 kDa). A three-layer mini-slab comprising an upper and lower layer and a MIP, or a non-imprinted control polymer dispersion middle layer has been investigated. The discriminating MIP layer, also based on polyacrylamide, was able to specifically bind BHb molecules in preference to a protein similar in molecular weight such as bovine serum albumin (BSA, ~66 kDa). Protein staining allowed us to visualise the protein retention strength of the MIP layer under the influence of an electric field. This method could be applied to other proteins with implications in effective protein capture, disease diagnostics, and protein analysis.
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Affiliation(s)
- Hazim F El Sharif
- Department of Chemistry, UCLan Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston, UK
| | - Flavio Giosia
- Department of Chemistry, UCLan Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston, UK.,Department of Chemistry, University of Rome La Sapienza, Rome, Italy
| | - Subrayal M Reddy
- Department of Chemistry, UCLan Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston, UK
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10
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Kim S, Fan J, Lee CS, Chen C, Lee M. Sulfonate Hydrogel-siRNA Conjugate Facilitates Osteogenic Differentiation of Mesenchymal Stem Cells by Controlled Gene Silencing and Activation of BMP Signaling. ACS APPLIED BIO MATERIALS 2021; 4:5189-5200. [PMID: 34661086 DOI: 10.1021/acsabm.1c00369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hydrogels have been widely used in bone tissue engineering due to their tunable characteristics that allow facile modifications with various biochemical properties to support cell growth and guide proper cell functions. Herein, we report a design of hydrogel-siRNA conjugate that facilitates osteogenesis via gene silencing and activation of bone morphogenetic protein (BMP) signaling. A sulfonate hydrogel is prepared by modifying chitosan with sulfoacetic acid to mimic a natural sulfated polysaccharide and to provide a hydrogel surface that enables BMP binding. Then, siRNA targeting noggin, an endogenous extracellular antagonist of BMP signaling, is covalently conjugated to the sulfonate hydrogel by visible blue light crosslinking. The sulfonate hydrogel-siRNA conjugate is efficient to bind BMPs and also successfully prolongs the release of siRNA for sustained noggin suppression, thereby resulting in significantly increased osteogenic differentiation. Lastly, demineralized bone matrix (DBM) is incorporated into the sulfonate hydrogel-siRNA conjugate, wherein the DBM incorporation induces noggin expression via a negative feedback mechanism that regulates BMP signaling in DBM. However, simultaneous delivery of siRNA downregulates noggin thus facilitating endogenous BMP activity and enhancing the osteogenic efficacy of DBM. These findings support a promising hydrogel RNA silencing platform for bone tissue engineering applications.
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Affiliation(s)
- Soyon Kim
- Division of Advanced Prosthodontics, University of California, Los Angeles, USA
| | - Jiabing Fan
- Division of Advanced Prosthodontics, University of California, Los Angeles, USA
| | - Chung-Sung Lee
- Division of Advanced Prosthodontics, University of California, Los Angeles, USA
| | - Chen Chen
- Division of Advanced Prosthodontics, University of California, Los Angeles, USA
| | - Min Lee
- Division of Advanced Prosthodontics, University of California, Los Angeles, USA.,Department of Bioengineering, University of California, Los Angeles, USA
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11
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Sullivan MV, Dennison SR, Hayes JM, Reddy SM. Evaluation of acrylamide-based molecularly imprinted polymer thin-sheets for specific protein capture-a myoglobin model. Biomed Phys Eng Express 2021; 7. [PMID: 34107465 PMCID: PMC8212870 DOI: 10.1088/2057-1976/ac0991] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/09/2021] [Indexed: 11/25/2022]
Abstract
We evaluate a series of thin-sheet hydrogel molecularly imprinted polymers (MIPs), using a family of acrylamide-based monomers, selective for the target protein myoglobin (Mb). The simple production of the thin-sheet MIP offers an alternative biorecognition surface that is robust, stable and uniform, and has the potential to be adapted for biosensor applications. The MIP containing the functional monomer N-hydroxymethylacrylamide (NHMAm), produced optimal specific rebinding of the target protein (Mb) with 84.9% (± 0.7) rebinding and imprinting and selectivity factors of 1.41 and 1.55, respectively. The least optimal performing MIP contained the functional monomer N,N-dimethylacrylamide (DMAm) with 67.5% (± 0.7) rebinding and imprinting and selectivity factors of 1.11 and 1.32, respectively. Hydrogen bonding effects, within a protein-MIP complex, were investigated using computational methods and Fourier transform infrared (FTIR) spectroscopy. The quantum mechanical calculations predictions of a red shift of the monomer carbonyl peak is borne-out within FTIR spectra, with three of the MIPs, acrylamide, N-(hydroxymethyl) acrylamide, and N-(hydroxyethyl) acrylamide, showing peak downshifts of 4, 11, and 8 cm−1, respectively.
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Affiliation(s)
- Mark V Sullivan
- Dr. M. V. Sullivan and Prof. S. M. Reddy, Department of Chemistry, School of Natural Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom
| | - Sarah R Dennison
- Dr. S. R. Dennison and Dr. J. M. Hayes, School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom
| | - Joseph M Hayes
- Dr. S. R. Dennison and Dr. J. M. Hayes, School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom
| | - Subrayal M Reddy
- Dr. M. V. Sullivan and Prof. S. M. Reddy, Department of Chemistry, School of Natural Sciences, University of Central Lancashire, Preston, PR1 2HE, United Kingdom
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12
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Hajizadeh S, Bülow L, Ye L. Synthesizing a Hybrid Nanocomposite as an Affinity Adsorbent through Surface-Initiated Atom Transfer Radical Polymerization Catalyzed by Myoglobin. ACS OMEGA 2021; 6:10462-10474. [PMID: 34056199 PMCID: PMC8153740 DOI: 10.1021/acsomega.1c00955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
A hybrid bifunctional core-shell nanostructure was synthesized for the first time via surface-initiated atom transfer radical polymerization (SI-ATRP) using myoglobin as a biocatalyst (ATRPase) in an aqueous solution. N-Isopropyl acrylamide (NIPA) and N-(3-aminopropyl)methacrylamide (APMA) were applied to graft flexible polymer brushes onto initiator-functionalized silica nanoparticles. Two different approaches were implemented to form the core-shell nanocomposite: (a) random copolymerization, Si@p(NIPA-co-APMA) and (b) sequential block copolymerization, Si@pNIPA-b-pAPMA. These nanocomposites can be used as versatile intermediates, thereby leading to different types of materials for targeted applications. In this work, a phenylboronic acid ligand was immobilized on the side chain of the grafted brushes during a series of postmodification reactions to create a boronate affinity adsorbent. The ability to selectively bind glycoproteins (ovalbumin and glycated hemoglobin) via boronic acid was assessed at two different temperatures (20 and 40 °C), where Si@pNIPA-b-APMABA (163 mg OVA/g of particle) displayed an approximately 1.5-fold higher capacity than Si@p(NIPA-co-APMA)BA (107 mg OVA/g of particle). In addition to selective binding to glycoproteins, the nanocomposites exhibited selective binding for myoglobin due to the molecular imprinting effect during the postmodification process, that is, 72 and 111 mg Mb/g for Si@p(NIPA-co-APMA)BA and Si@pNIPA-b-pAPMABA, respectively.
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13
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Sullivan MV, Clay O, Moazami MP, Watts JK, Turner NW. Hybrid Aptamer-Molecularly Imprinted Polymer (aptaMIP) Nanoparticles from Protein Recognition-A Trypsin Model. Macromol Biosci 2021; 21:e2100002. [PMID: 33760365 DOI: 10.1002/mabi.202100002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/24/2021] [Indexed: 12/18/2022]
Abstract
Aptamers offer excellent potential for replacing antibodies for molecular recognition purposes however their performance can compromise with biological/environmental degradation being a particular problem. Molecularly imprinted Polymers (MIPs) offer an alternative to biological materials and while these offer the robustness and ability to work in extreme environmental conditions, they often lack the same recognition performance. By slightly adapting the chemical structure of a DNA aptamer it is incorporated for use as the recognition part of a MIP, thus creating an aptamer-MIP hybrid or aptaMIP. Here these are developed for the detection of the target protein trypsin. The aptaMIP nanoparticles offer superior binding affinity over conventional MIP nanoparticles (nanoMIPs), with KD values of 6.8 × 10-9 (±0.2 × 10-9 ) m and 12.3 × 10-9 (±0.4 × 10-9 ) m for the aptaMIP and nanoMIP, respectively. The aptaMIP also outperforms the aptamer only (10.3 × 10-9 m). Good selectivity against other protein targets is observed. Using surface plasmon resonance, the limit of detection for aptaMIP nanoparticles is twofold lower (2 nm) compared to the nanoMIP (4 nm). Introduction of the aptamer as a "macro-monomer" into the MIP scaffold has beneficial effects and offers potential to improve this class of polymers significantly.
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Affiliation(s)
- Mark V Sullivan
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, UK
| | - Oliver Clay
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, UK
| | - Michael P Moazami
- RNA Therapeutics Institute, UMass Medical School, Worcester, MA, 01605, USA.,Department of Biochemistry and Molecular Pharmacology, UMass Medical School, Worcester, MA, 01605, USA
| | - Jonathan K Watts
- RNA Therapeutics Institute, UMass Medical School, Worcester, MA, 01605, USA.,Department of Biochemistry and Molecular Pharmacology, UMass Medical School, Worcester, MA, 01605, USA
| | - Nicholas W Turner
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester, LE1 9BH, UK
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El-Aal MAA, Al-Ghobashy MA, El-Saharty YS. Preparation and characterization of 96-well microplates coated with molecularly imprinted polymer for determination and biosimilarity assessment of recombinant human erythropoietin. J Chromatogr A 2021; 1641:462012. [PMID: 33647538 DOI: 10.1016/j.chroma.2021.462012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 02/06/2023]
Abstract
Synthesis and applications of molecularly imprinted polymers (MIP) are rapidly growing. In this study, a biomimetic MIP was prepared through silanes polymerization on the surface of 96-well microplates using recombinant human erythropoietin-alfa (rhEPO) as a template molecule. The rhEPO was immobilized onto the plate surface using bi-functional cross-linker and a thin imprinted layer following sol-gel procedure was constructed. After template extraction, uniform three-dimensional cavities compatible with the configuration of rhEPO were obtained. The rhEPO-MIP preparation was optimized using 2-level factorial design and response surface design where polymerization time and interactions between the different variable were found to be the most significant factors. Size-exclusion chromatography (SEC) was used to monitor the stability of the rhEPO under the investigated polymerization conditions. Determination of rhEPO using the MIP microplate showed good dynamic response fitting to the 4 PL regression model (0.9962) over a concentration range of 10.00 - 100.00 ng mL-1. Adsorption of rhEPO onto MIP followed the Langmuir isotherm model (r = 0.9957, χ2 =0.02786) with pseudo-second-order kinetics (r = 0.9984). The surface of the rhEPO-MIP was characterized using scanning electron microscopy (SEM) while step-by-step surface modification was tracked using Fourier transform infrared (FTIR) spectroscopy. The rhEPO-MIP was able to distinguish between the rhEPO-alfa template and modified rhEPO molecules; rhEPO-beta, hyperglycosylated and pegylated forms (imprinting factors < 2) and in the commonly used formulation additive human serum albumin (HSA) (R% = 113.96 -95.22%). The rhEPO-MIP was applied to compare the receptor-binding pattern to rhEPO and its biosimilars / structural analogues. The results were cross-validated using the conventional assay protocol (RP-HPLC and ELISA) and an acceptable correlation was observed with RP-HPLC (maximum deviation is 7.78%). This work confirmed the applicability of rhEPO-MIP with its unique binding features for batch release, stability and biosimilarity assessment as well as subsequent evaluation of batch-to-batch consistency during bioproduction of target analytes.
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Affiliation(s)
- May A Abd El-Aal
- National Organization for Research and Control of Biologicals, Egypt
| | - Medhat A Al-Ghobashy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Egypt; Bioanalysis Research Group, School of Pharmacy, Newgiza University, Egypt.
| | - Yasser S El-Saharty
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Egypt
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15
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A highly-sensitive and selective antibody-like sensor based on molecularly imprinted poly(L-arginine) on COOH-MWCNTs for electrochemical recognition and detection of deoxynivalenol. Food Chem 2021; 350:129229. [PMID: 33636619 DOI: 10.1016/j.foodchem.2021.129229] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 10/14/2020] [Accepted: 12/29/2020] [Indexed: 12/19/2022]
Abstract
A new strategy to mimic antibody for electrochemical recognition and detection of deoxynivalenol (DON) using a highly-sensitive and selective antibody-like sensor based on molecularly imprinted poly(l-arginine) (P-Arg-MIP) on carboxylic acid functionalized carbon nanotubes (COOH-MWCNTs) was proposed. l-arginine as functional monomer was screened to prepare imprinted electrode via its electro-polymerization in the presence of DON onto the surface of COOH-MWCNTs electrode coupled with theoretical calculation. Surface morphology, structural characteristics, and electrochemical properties of P-Arg-MIP/COOH-MWCNTs were characterized by SEM, EDS, FTIR, and CV, respectively. P-Arg-MIP/COOH-MWCNTs displayed relatively high conductivity, high effective surface area, antibody-like molecular recognition and affinity, and a good response towards DON in a linear range from 0.1 to 70 μM with LOD of 0.07 μM in wheat flour samples with satisfactory recovery and feasible practicability in comparison with HPLC. This method provides a promising biomimetic sensing platform for the determination of mycotoxins in food and agro-products.
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16
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Sullivan MV, Allabush F, Bunka D, Tolley A, Mendes PM, Tucker JHR, Turner NW. Hybrid aptamer-molecularly imprinted polymer (AptaMIP) nanoparticles selective for the antibiotic moxifloxacin. Polym Chem 2021. [DOI: 10.1039/d1py00607j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A polymerisable aptamer incorporated into Molecularly Imprinted Polymer nanoparticles (MIPs) creates a hybrid “best-of-both-worlds” approach which outperforms individual constituent components.
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Affiliation(s)
| | - Francia Allabush
- School of Chemical Engineering
- University of Birmingham
- Birmingham
- UK
- School of Chemistry
| | - David Bunka
- The Aptamer Group
- Second Floor
- Bio Centre
- York
- UK
| | | | - Paula M. Mendes
- School of Chemical Engineering
- University of Birmingham
- Birmingham
- UK
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17
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Sullivan M, Hand R, Turner N. Generation of High-Affinity Aptamer-MIP Hybrid Nanoparticles. Methods Mol Biol 2021; 2359:109-121. [PMID: 34410663 DOI: 10.1007/978-1-0716-1629-1_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Aptamers and molecularly imprinted polymers (MIPs) are two leading technologies used for the development of protein biomimetics. By combining the two technologies, a new hybrid class of materials can be created, which utilizes the interesting characteristics of both recognition materials, while negating several of their drawbacks. This chapter describes the protocol for the synthesis of aptamer-MIP hybrid nanoparticles. These materials exhibit exceptional affinity (into the nM range) and selectivity for their target template. They can be developed for a wide range of targets, while exhibiting excellent robustness, solubility, and flexibility in use. These are a new class of recognition materials with the potential for use as drug delivery vectors, as well as use within sensing and recognition assays.
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Affiliation(s)
- Mark Sullivan
- School of Pharmacy, De Montfort University, Leicester, UK
| | - Rachel Hand
- School of Pharmacy, De Montfort University, Leicester, UK
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18
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Feroz M, Vadgama P. Molecular Imprinted Polymer Modified Electrochemical Sensors for Small Drug Analysis: Progress to Practical Application. ELECTROANAL 2020. [DOI: 10.1002/elan.202060276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Momina Feroz
- Institute of Chemistry University of the Punjab 54590 Lahore Pakistan
| | - Pankaj Vadgama
- School of Engineering and Materials Science Queen Mary University of London Mile End Road London E1 4NS United Kingdom
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19
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The Use of Aptamers and Molecularly Imprinted Polymers in Biosensors for Environmental Monitoring: A Tale of Two Receptors. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8020032] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Effective molecular recognition remains a major challenge in the development of robust receptors for biosensing applications. Over the last three decades, aptamers and molecularly imprinted polymers (MIPs) have emerged as the receptors of choice for use in biosensors as viable alternatives to natural antibodies, due to their superior stability, comparable binding performance, and lower costs. Although both of these technologies have been developed in parallel, they both suffer from their own unique problems. In this review, we will compare and contrast both types of receptor, with a focus on the area of environmental monitoring. Firstly, we will discuss the strategies and challenges involved in their development. We will also discuss the challenges that are involved in interfacing them with the biosensors. We will then compare and contrast their performance with a focus on their use in the detection of environmental contaminants, namely, antibiotics, pesticides, heavy metals, and pathogens detection. Finally, we will discuss the future direction of these two technologies.
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20
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Fahim AM, Wasiniak B, Łukaszewicz JP. Molecularly Imprinted Polymer and Computational Study of (E)-4-(2- cyano-3-(dimethylamino)acryloyl)benzoic Acid from Poly(ethylene terephthalate) Plastic Waste. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411015666190131123843] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background:
Molecularly imprinted polymers (MIPs) are utilized in the separation of a
pure compound from complex matrices. A stable template-monomer complex generates MIPs with
the highest affinity and selectivity for the template. In this investigation, degradation of
Poly(ethylene terephthalate) PET afforded the (E)-4-(2-cyano-3-(dimethylamino) acryloyl) benzoic
acid (4) (TAM) which used TAM as template which interacts with Methacrylic Acid (MAA)
monomer, in the presence of CH3CN as progen. The TAM-MMA complex interactions are dependent
on stable hydrogen bonding interaction between the carboxylic acid group of TAM and the
hydroxyl group of MMA with minimal interference of porogen CH3CN. The DFT/B3LYP/6-31+G
model chemistry was used to optimize their structures and frequency calculations. The binding energies
between TAM with different monomers showed the most stable molar ratio of 1:4 which was
confirmed through experimental analysis.
Methods:
The present work describes the synthesis of (E)-4-(2-cyano-3-(dimethylamino) acryloyl)
benzoic acid (4) (TAM) from PET waste and formation of molecularly imprinted polymer from
TAM with the methacrylic acid monomer. The optimization of molecular imprinted was stimulated
via DFT/B3LYP/6-31G (d). The imprinted polymer film was characterized via thermal analysis, pore
size, FT-IR and scanning electron microscopy.
Results:
The most stable molecularly imprinted polymers (MIPs) showed binding energy of
TAM(MMA4)=-2063.456 KJ/mol with a small value of mesopores (10-100 Å). Also, the sorption
capability of TAM-MIPs showed 6.57 mg/g using STP-MIP-9VC. Moreover, the average pore size
ranged between 0.2-1 nm with the BET surface about 300 m2/g.
Conclusion:
The proposed TAM exhibited a high degree of selectivity for MMA in comparison with
other different monomers through hydrogen bond interaction, which was thermally stable, good reproducibility
and excellent regeneration capacity and elucidated in the computational study and analytical
analysis.
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Affiliation(s)
- Asmaa M. Fahim
- Green Chemistry Department, National Research Center, Dokki, P.O. Box.12622 Cairo, Egypt
| | - Bartłomiej Wasiniak
- Fundamentals of Chemistry Department, Nicolaus Copernicus University, 7 Gagarin St, PL-87 100 Torun, Poland
| | - Jerzy P. Łukaszewicz
- Fundamentals of Chemistry Department, Nicolaus Copernicus University, 7 Gagarin St, PL-87 100 Torun, Poland
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Sullivan MV, Dennison SR, Archontis G, Reddy SM, Hayes JM. Toward Rational Design of Selective Molecularly Imprinted Polymers (MIPs) for Proteins: Computational and Experimental Studies of Acrylamide Based Polymers for Myoglobin. J Phys Chem B 2019; 123:5432-5443. [DOI: 10.1021/acs.jpcb.9b03091] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mark V. Sullivan
- School of Physical Sciences & Computing, Division of Chemistry, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Sarah R. Dennison
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | | | - Subrayal M. Reddy
- School of Physical Sciences & Computing, Division of Chemistry, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Joseph M. Hayes
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
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22
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Graham SP, El-Sharif HF, Hussain S, Fruengel R, McLean RK, Hawes PC, Sullivan MV, Reddy SM. Evaluation of Molecularly Imprinted Polymers as Synthetic Virus Neutralizing Antibody Mimics. Front Bioeng Biotechnol 2019; 7:115. [PMID: 31179277 PMCID: PMC6542949 DOI: 10.3389/fbioe.2019.00115] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/07/2019] [Indexed: 11/13/2022] Open
Abstract
Rapid development of antibody-based therapeutics are crucial to the agenda of innovative manufacturing of macromolecular therapies to combat emergent diseases. Although highly specific, antibody therapies are costly to produce. Molecularly imprinted polymers (MIPs) constitute a rapidly-evolving class of antigen-recognition materials that act as synthetic antibodies. We report here on the virus neutralizing capacity of hydrogel-based MIPs. We produced MIPs using porcine reproductive and respiratory syndrome virus (PRRSV-1), as a model mammalian virus. Assays were performed to evaluate the specificity of virus neutralization, the effect of incubation time and MIP concentration. Polyacrylamide and N-hydroxymethylacrylamide based MIPs produced a highly significant reduction in infectious viral titer recovered after treatment, reducing it to the limit of detection of the assay. MIP specificity was tested by comparing their neutralizing effects on PRRSV-1 to the effects on the unrelated bovine viral diarrhea virus-1; no significant cross-reactivity was observed. The MIPs demonstrated effective virus neutralization in just 2.5 min and their effect was concentration dependent. These data support the further evaluation of MIPs as synthetic antibodies as a novel approach to the treatment of viral infection.
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Affiliation(s)
- Simon P. Graham
- School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
- The Pirbright Institute, Pirbright, United Kingdom
| | - Hazim F. El-Sharif
- Department of Chemistry, University of Central Lancashire, Preston, United Kingdom
| | - Sabha Hussain
- School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Rieke Fruengel
- School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | | | | | - Mark V. Sullivan
- Department of Chemistry, University of Central Lancashire, Preston, United Kingdom
| | - Subrayal M. Reddy
- Department of Chemistry, University of Central Lancashire, Preston, United Kingdom
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23
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A highly-sensitive VB2 electrochemical sensor based on one-step co-electrodeposited molecularly imprinted WS2-PEDOT film supported on graphene oxide-SWCNTs nanocomposite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:77-87. [DOI: 10.1016/j.msec.2018.06.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 04/05/2018] [Accepted: 06/13/2018] [Indexed: 01/09/2023]
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24
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Viveiros R, Rebocho S, Casimiro T. Green Strategies for Molecularly Imprinted Polymer Development. Polymers (Basel) 2018; 10:E306. [PMID: 30966341 PMCID: PMC6415187 DOI: 10.3390/polym10030306] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/01/2018] [Accepted: 03/06/2018] [Indexed: 11/24/2022] Open
Abstract
Molecular imprinting is a powerful technology to create artificial receptors within polymeric matrices. Although it was reported for the first time by Polyakov, eighty-four years ago, it remains, nowadays, a very challenging research area. Molecularly imprinted polymers (MIPs) have been successfully used in several applications where selective binding is a requirement, such as immunoassays, affinity separation, sensors, and catalysis. Conventional methods used on MIP production still use large amounts of organic solvents which, allied with stricter legislation on the use and release of chemicals to the environment and the presence of impurities on final materials, will boost, in our opinion, the use of new cleaner synthetic strategies, in particular, with the application of the principles of green chemistry and engineering. Supercritical carbon dioxide, microwave, ionic liquids, and ultrasound technology are some of the green strategies which have already been applied in MIP production. These strategies can improve MIP properties, such as controlled morphology, homogeneity of the binding sites, and the absence of organic solvents. This review intends to give examples reported in literature on green approaches to MIP development, from nano- to micron-scale applications.
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Affiliation(s)
- Raquel Viveiros
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - Sílvia Rebocho
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
| | - Teresa Casimiro
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.
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25
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Orihara K, Hikichi A, Arita T, Muguruma H, Yoshimi Y. Heparin molecularly imprinted polymer thin flm on gold electrode by plasma-induced graft polymerization for label-free biosensor. J Pharm Biomed Anal 2018; 151:324-330. [DOI: 10.1016/j.jpba.2018.01.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/24/2017] [Accepted: 01/08/2018] [Indexed: 11/26/2022]
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26
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Battista E, Scognamiglio PL, Di Luise N, Raucci U, Donati G, Rega N, Netti PA, Causa F. Turn-on fluorescence detection of protein by molecularly imprinted hydrogels based on supramolecular assembly of peptide multi-functional blocks. J Mater Chem B 2018; 6:1207-1215. [PMID: 32254181 DOI: 10.1039/c7tb03107f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Synthetic receptors for biomacromolecules lack the supramolecular self-assembly behavior typical of biological systems. Here we propose a new method for the preparation of protein imprinted polymers based on the specific interaction of a peptide multi-functional block with a protein target. This peptide block contains a protein-binding peptide domain, a polymerizable moiety at the C-terminus and an environment-sensitive fluorescent molecule at the N-terminus. The method relies on a preliminary step consisting of peptide/protein supramolecular assembly, followed by copolymerization with the most common acrylate monomers (acrylamide, acrylic acid and bis-acrylamide) to produce a protein imprinted hydrogel polymer. Such a peptide block can function as an active assistant recognition element to improve affinity, and guarantees its effective polymerization at the protein/cavity interface, allowing for proper placement of a dye. As a proof of concept, we chose Bovine Serum Albumin (BSA) as the protein target and built the peptide block around a BSA binding dodecapeptide, with an allyl group as the polymerizable moiety and a dansyl molecule as the responsive dye. Compared to conventional approaches these hydrogels showed higher affinity (more than 45%) and imprinted sensitivity (about twenty fold) to the target, with a great BSA selectivity with respect to ovalbumin (α = 1.25) and lysozyme (α = 6.02). Upon protein binding, computational and experimental observations showed a blue shift of the emission peak (down to 440 nm) and an increase of fluorescence emission (twofold) and average lifetime (Δτ = 4.3 ns). Such an approach generates recognition cavities with controlled chemical information and represents an a priori method for self-responsive materials. Provided a specific peptide and minimal optimization conditions are used, such a method could be easily implemented for any protein target.
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Affiliation(s)
- Edmondo Battista
- Interdisciplinary Research Centre on Biomaterials (CRIB) Università degli studi di Napoli "Federico II", Piazzale Tecchio 80, 80125, Napoli, Italy.
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27
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Lee MH, Thomas JL, Liao CL, Jurcevic S, Crnogorac-Jurcevic T, Lin HY. Polymers imprinted with three REG1B peptides for electrochemical determination of Regenerating Protein 1B, a urinary biomarker for pancreatic ductal adenocarcinoma. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2169-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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28
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Frasco MF, Truta LAANA, Sales MGF, Moreira FTC. Imprinting Technology in Electrochemical Biomimetic Sensors. SENSORS (BASEL, SWITZERLAND) 2017; 17:E523. [PMID: 28272314 PMCID: PMC5375809 DOI: 10.3390/s17030523] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/21/2017] [Accepted: 03/03/2017] [Indexed: 12/14/2022]
Abstract
Biosensors are a promising tool offering the possibility of low cost and fast analytical screening in point-of-care diagnostics and for on-site detection in the field. Most biosensors in routine use ensure their selectivity/specificity by including natural receptors as biorecognition element. These materials are however too expensive and hard to obtain for every biochemical molecule of interest in environmental and clinical practice. Molecularly imprinted polymers have emerged through time as an alternative to natural antibodies in biosensors. In theory, these materials are stable and robust, presenting much higher capacity to resist to harsher conditions of pH, temperature, pressure or organic solvents. In addition, these synthetic materials are much cheaper than their natural counterparts while offering equivalent affinity and sensitivity in the molecular recognition of the target analyte. Imprinting technology and biosensors have met quite recently, relying mostly on electrochemical detection and enabling a direct reading of different analytes, while promoting significant advances in various fields of use. Thus, this review encompasses such developments and describes a general overview for building promising biomimetic materials as biorecognition elements in electrochemical sensors. It includes different molecular imprinting strategies such as the choice of polymer material, imprinting methodology and assembly on the transduction platform. Their interface with the most recent nanostructured supports acting as standard conductive materials within electrochemical biomimetic sensors is pointed out.
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Affiliation(s)
- Manuela F Frasco
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, 4200-072 Porto, Portugal.
| | - Liliana A A N A Truta
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, 4200-072 Porto, Portugal.
| | - M Goreti F Sales
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, 4200-072 Porto, Portugal.
| | - Felismina T C Moreira
- BioMark-CINTESIS/ISEP, School of Engineering, Polytechnic Institute of Porto, 4200-072 Porto, Portugal.
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29
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El-Aal MAA, Al-Ghobashy MA, Fathalla FAA, El-Saharty YS. Preparation and characterization of pH-responsive polyacrylamide molecularly imprinted polymer: Application to isolation of recombinant and wild type human serum albumin from biological sources. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1046:34-47. [DOI: 10.1016/j.jchromb.2017.01.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/13/2017] [Accepted: 01/19/2017] [Indexed: 10/20/2022]
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30
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Zhou RB, Cao HL, Zhang CY, Yin DC. A review on recent advances for nucleants and nucleation in protein crystallization. CrystEngComm 2017. [DOI: 10.1039/c6ce02562e] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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31
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Dang M, Deng Q, Fang G, Zhang D, Liu J, Wang S. Preparation of novel anionic polymeric ionic liquid materials and their potential application to protein adsorption. J Mater Chem B 2017; 5:6339-6347. [DOI: 10.1039/c7tb01234a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A series of novel anionic polymeric ionic liquid materials were prepared and used to adsorb bovine hemoglobin from bovine blood.
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Affiliation(s)
- Meng Dang
- Key Laboratory of Food Nutrition and Safety
- Ministry of Education
- Tianjin University of Science and Technology
- Tianjin 300457
- China
| | - Qiliang Deng
- Key Laboratory of Food Nutrition and Safety
- Ministry of Education
- Tianjin University of Science and Technology
- Tianjin 300457
- China
| | - Guozhen Fang
- Key Laboratory of Food Nutrition and Safety
- Ministry of Education
- Tianjin University of Science and Technology
- Tianjin 300457
- China
| | - Dongdong Zhang
- Key Laboratory of Food Nutrition and Safety
- Ministry of Education
- Tianjin University of Science and Technology
- Tianjin 300457
- China
| | - Jingmin Liu
- Key Laboratory of Food Nutrition and Safety
- Ministry of Education
- Tianjin University of Science and Technology
- Tianjin 300457
- China
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety
- Ministry of Education
- Tianjin University of Science and Technology
- Tianjin 300457
- China
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32
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Selective extraction of proteins and other macromolecules from biological samples using molecular imprinted polymers. Bioanalysis 2016; 8:2255-2263. [DOI: 10.4155/bio-2016-0209] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The accurate determination of intact macromolecules in biological samples, such as blood, plasma, serum, urine, tissue and feces is a challenging problem. The increased interest in macromolecules both as candidate drugs and as biomarkers for diagnostic purposes means that new method development approaches are needed. This review charts developments in the use of molecularly imprinted polymers first for small-molecular-mass compounds then for proteins and other macromolecules. Examples of the development of molecularly imprinted polymers for macromolecules are highlighted. The two main application areas to date are sensors and separation science, particularly SPE. Examples include peptides and polypeptides, lysozyme, hemoglobin, ovalbumin, bovine serum albumin and viruses.
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33
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Functionalized poly(ethylene glycol) diacrylate microgels by microfluidics: In situ peptide encapsulation for in serum selective protein detection. Colloids Surf B Biointerfaces 2016; 145:21-29. [DOI: 10.1016/j.colsurfb.2016.04.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 11/24/2022]
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34
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Controlled architecture for improved macromolecular memory within polymer networks. Curr Opin Biotechnol 2016; 40:170-176. [DOI: 10.1016/j.copbio.2016.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/01/2016] [Accepted: 06/02/2016] [Indexed: 01/01/2023]
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35
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Shumyantseva VV, Bulko TV, Sigolaeva LV, Kuzikov AV, Archakov AI. Electrosynthesis and binding properties of molecularly imprinted poly-o-phenylenediamine for selective recognition and direct electrochemical detection of myoglobin. Biosens Bioelectron 2016; 86:330-336. [PMID: 27392234 DOI: 10.1016/j.bios.2016.05.101] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/24/2016] [Accepted: 05/31/2016] [Indexed: 11/28/2022]
Abstract
Electrosynthesis of molecularly imprinted polymer (MIP) templated with myoglobin (Mb) and the reference non-imprinted polymer (NIP) was examined with o-phenylenediamine (o-PD) as a monomer. Mass-sensitive quartz crystal microbalance with dissipation monitoring supplied by an electrochemical module (EQCM-D) was applied to characterize and optimize MIP/NIP electrosynthesis. Mb rebinding was detected by direct electrocatalytic reduction of Mb by square wave voltammetry (SWV) or differential pulse voltammetry (DPV). The results obtained showed high specificity of polymeric antibodies to template Mb, with an imprinting factor determined as a ratio Imax(MIP)/Imax(NIP) of 2-4. The prepared MIP sensor is characterized by an apparent dissociation constant of (3.3±0.5)×10(-9)M and has a broad range of working concentrations of 1nM-1μМ, with the detection limit of 0.5nM (9ng/ml). Mb rebinding was examined in Mb-free diluted human serum spiked with Mb as well as in plasma samples of patients with acute myocardial infarction (AMI) and in control plasma of healthy donors in order to demonstrate the potential medical application of developed MIP sensors.
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Affiliation(s)
- Victoria V Shumyantseva
- Institute of Biomedical Chemistry, 119121 Moscow, Russia; IBMC-EcoBioPharm Company, 119121 Moscow, Russia; N.I. Pirogov Russian National Medical University, 117997 Moscow, Russia.
| | - Tatiana V Bulko
- Institute of Biomedical Chemistry, 119121 Moscow, Russia; IBMC-EcoBioPharm Company, 119121 Moscow, Russia
| | - Larisa V Sigolaeva
- Institute of Biomedical Chemistry, 119121 Moscow, Russia; Department of Chemistry, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Alexey V Kuzikov
- Institute of Biomedical Chemistry, 119121 Moscow, Russia; IBMC-EcoBioPharm Company, 119121 Moscow, Russia; N.I. Pirogov Russian National Medical University, 117997 Moscow, Russia
| | - Alexander I Archakov
- Institute of Biomedical Chemistry, 119121 Moscow, Russia; N.I. Pirogov Russian National Medical University, 117997 Moscow, Russia
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36
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Pakulska MM, Miersch S, Shoichet MS. Designer protein delivery: From natural to engineered affinity-controlled release systems. Science 2016; 351:aac4750. [PMID: 26989257 DOI: 10.1126/science.aac4750] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Exploiting binding affinities between molecules is an established practice in many fields, including biochemical separations, diagnostics, and drug development; however, using these affinities to control biomolecule release is a more recent strategy. Affinity-controlled release takes advantage of the reversible nature of noncovalent interactions between a therapeutic protein and a binding partner to slow the diffusive release of the protein from a vehicle. This process, in contrast to degradation-controlled sustained-release formulations such as poly(lactic-co-glycolic acid) microspheres, is controlled through the strength of the binding interaction, the binding kinetics, and the concentration of binding partners. In the context of affinity-controlled release--and specifically the discovery or design of binding partners--we review advances in in vitro selection and directed evolution of proteins, peptides, and oligonucleotides (aptamers), aided by computational design.
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Affiliation(s)
- Malgosia M Pakulska
- Department of Chemical Engineering and Applied Chemistry, Institute of Biomaterials and Biomedical Engineering, and Donnelly Centre, University of Toronto, Toronto, Ontario, Canada
| | - Shane Miersch
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Molly S Shoichet
- Department of Chemical Engineering and Applied Chemistry, Institute of Biomaterials and Biomedical Engineering, and Donnelly Centre, University of Toronto, Toronto, Ontario, Canada. Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
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37
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Esmaeilzadeh S, Valizadeh H, Zakeri-Milani P. The effects of pH, temperature and protein concentration on the in vitro binding of flutamide to human serum albumin. Pharm Dev Technol 2016; 22:982-991. [DOI: 10.3109/10837450.2016.1163392] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Sara Esmaeilzadeh
- Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Valizadeh
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parvin Zakeri-Milani
- Liver and Gastrointestinal Diseases Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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38
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Zhang Z, Liu J. Molecularly Imprinted Polymers with DNA Aptamer Fragments as Macromonomers. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6371-6378. [PMID: 26910515 DOI: 10.1021/acsami.6b00461] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Molecularly imprinted polymers (MIPs) are produced in the presence of a template molecule. After removing the template, the cavity can selectively rebind the template. MIPs are attractive functional materials with a low cost and high stability, but traditional MIPs often suffer from low binding affinity. This study employs DNA aptamer fragments as macromonomers to improve MIPs. The DNA aptamer for adenosine was first split into two halves, fluorescently labeled, and copolymerized into MIPs. With a fluorescence quenching assay, the importance of imprinting was confirmed. Further studies were carried out using isothermal titration calorimetry (ITC). Compared to the mixture of the free aptamer fragments, their MIPs doubled the binding affinity. Each free aptamer fragment alone cannot bind adenosine, whereas MIPs containing each fragment are effective binders. We further shortened one of the aptamer fragments, and the DNA length was pushed to as short as six nucleotides, yielding MIPs with a dissociation constant of 27 μM adenosine. This study provides a new method for preparing functional MIP materials by combining high-affinity biopolymer fragments with low-cost synthetic monomers, allowing higher binding affinity and providing a method for signaling binding based on DNA chemistry.
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Affiliation(s)
- Zijie Zhang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo , Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo , Waterloo, Ontario N2L 3G1, Canada
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39
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Ding H, Chen R, Liu M, Huang R, Du Y, Huang C, Yu X, Feng X, Liu F. Preparation and characterization of biocompatible molecularly imprinted poly(ionic liquid) films on the surface of multi-walled carbon nanotubes. RSC Adv 2016. [DOI: 10.1039/c6ra08782e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A series of novel biocompatible MIPs were synthesized for BSA recognition by using MWCNTs with different outside diameters as substrates, and allyl-functionalized ionic liquids with different anion species as monomers.
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Affiliation(s)
- Haoyuan Ding
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Rongfeng Chen
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Mingming Liu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Rong Huang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Yamei Du
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Chao Huang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Xiaoyang Yu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Xionghan Feng
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
| | - Fan Liu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River)
- Ministry of Agriculture
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
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40
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Wang XL, Yao HF, Li XY, Wang X, Huang YP, Liu ZS. pH/temperature-sensitive hydrogel-based molecularly imprinted polymers (hydroMIPs) for drug delivery by frontal polymerization. RSC Adv 2016. [DOI: 10.1039/c6ra20626c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Frontal polymerization was successfully utilized, for the first time, to obtain pH/temperature-sensitive hydrogel-based molecularly imprinted polymers (hydroMIPs).
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Affiliation(s)
- Xiao-Lin Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics)
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- China
| | - Hong-Fei Yao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics)
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- China
| | - Xiu-Yuan Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics)
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- China
| | - Xu Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics)
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- China
| | - Yan-Ping Huang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics)
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- China
| | - Zhao-Sheng Liu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics)
- School of Pharmacy
- Tianjin Medical University
- Tianjin 300070
- China
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41
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Molecularly imprinted polymers for separating and sensing of macromolecular compounds and microorganisms. Biotechnol Adv 2015; 34:30-46. [PMID: 26656748 DOI: 10.1016/j.biotechadv.2015.12.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/26/2015] [Accepted: 12/01/2015] [Indexed: 12/22/2022]
Abstract
The present review article focuses on gathering, summarizing, and critically evaluating the results of the last decade on separating and sensing macromolecular compounds and microorganisms with the use of molecularly imprinted polymer (MIP) synthetic receptors. Macromolecules play an important role in biology and are termed that way to contrast them from micromolecules. The former are large and complex molecules with relatively high molecular weights. The article mainly considers chemical sensing of deoxyribonucleic acids (DNAs), proteins and protein fragments as well as sugars and oligosaccharides. Moreover, it briefly discusses fabrication of chemosensors for determination of bacteria and viruses that can ultimately be considered as extremely large macromolecules.
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42
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Zhang Y, Li J, Wang F, Wu G, Qv X, Hong H, Liu C. Recovery and separation of erythromycin from industrial wastewater by imprinted magnetic nanoparticles that exploit β-cyclodextrin as the functional monomer. J Sep Sci 2015; 39:450-9. [PMID: 26805958 DOI: 10.1002/jssc.201500927] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/16/2015] [Accepted: 10/17/2015] [Indexed: 12/22/2022]
Abstract
A type of surface imprinting over magnetic Fe3 O4 nanoparticles utilizing erythromycin-A as a template for use in the separation and recovery of erythromycin was developed and investigated. As the intermolecular forces play a key role in the performance of imprinted materials, differential scanning calorimetry, and (1) H NMR spectroscopy was employed to evaluate the interactions between erythromycin and the functional monomer β-cyclodextrin. To synthesize the surface imprinted polymers, magnetic Fe3 O4 nanoparticles, the core materials, were modified with a free radical initiator to initialize polymerization in a "grafting from" manner. Then using acryloyl-modified β-cyclodextrin as the functional monomer and ethyleneglycol dimethacrylate as the cross-linker, thin erythromycin-imprinted films were fabricated by the radical-induced graft copolymerization of monomers on the surface of the Fe3 O4 nanoparticles. Selectivity experiments showed that the erythromycin-A-imprinted materials had recognition ability toward erythromycin derivatives. Finally, these magnetic molecularly imprinted particles were successfully used for the separation and enrichment of erythromycin from the mother liquor. The recovery, detected by high-performance liquid chromatography and differential pulse voltammetry, approached 97%. The combination of the specific selectivity of the imprinted material and the magnetic separation provided a powerful tool that is simple, flexible, and selective for the separation and recovery of erythromycin.
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Affiliation(s)
- Yuxin Zhang
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, P.R. China.,Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China.,Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China
| | - Jinyang Li
- Fischell Department of Bioengineering, Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - FeiFei Wang
- Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China
| | - Gang Wu
- Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China
| | - Xue Qv
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, P.R. China.,Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China
| | - Hua Hong
- Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China
| | - Changsheng Liu
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, P.R. China.,Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China.,Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, P.R. China
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43
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Optimization of enrofloxacin-imprinted polymers by computer-aided design. J Mol Model 2015; 21:290. [DOI: 10.1007/s00894-015-2836-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 10/09/2015] [Indexed: 10/22/2022]
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44
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Khurshid S, Govada L, El-Sharif HF, Reddy SM, Chayen NE. Automating the application of smart materials for protein crystallization. ACTA ACUST UNITED AC 2015; 71:534-40. [PMID: 25760603 PMCID: PMC4356364 DOI: 10.1107/s1399004714027643] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 12/18/2014] [Indexed: 11/10/2022]
Abstract
The first semi-liquid, non-protein nucleating agent for automated protein crystallization trials is described. This ‘smart material’ is demonstrated to induce crystal growth and will provide a simple, cost-effective tool for scientists in academia and industry. The fabrication and validation of the first semi-liquid nonprotein nucleating agent to be administered automatically to crystallization trials is reported. This research builds upon prior demonstration of the suitability of molecularly imprinted polymers (MIPs; known as ‘smart materials’) for inducing protein crystal growth. Modified MIPs of altered texture suitable for high-throughput trials are demonstrated to improve crystal quality and to increase the probability of success when screening for suitable crystallization conditions. The application of these materials is simple, time-efficient and will provide a potent tool for structural biologists embarking on crystallization trials.
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Affiliation(s)
- Sahir Khurshid
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, England
| | - Lata Govada
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, England
| | - Hazim F El-Sharif
- Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, England
| | - Subrayal M Reddy
- Department of Chemistry, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, England
| | - Naomi E Chayen
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, England
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45
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Characterization of the Binding Properties of Molecularly Imprinted Polymers. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2015; 150:51-93. [PMID: 25796622 DOI: 10.1007/10_2015_316] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The defining characteristic of the binding sites of any particular molecularly imprinted material is heterogeneity: that is, they are not all identical. Nonetheless, it is useful to study their fundamental binding properties, and to obtain average properties. In particular, it has been instructive to compare the binding properties of imprinted and non-imprinted materials. This chapter begins by considering the origins of this site heterogeneity. Next, the properties of interest of imprinted binding sites are described in brief: affinity, selectivity, and kinetics. The binding/adsorption isotherm, the graph of concentration of analyte bound to a MIP versus concentration of free analyte at equilibrium, over a range of total concentrations, is described in some detail. Following this, the techniques for studying the imprinted sites are described (batch-binding assays, radioligand binding assays, zonal chromatography, frontal chromatography, calorimetry, and others). Thereafter, the parameters that influence affinity, selectivity and kinetics are discussed (solvent, modifiers of organic solvents, pH of aqueous solvents, temperature). Finally, mathematical attempts to fit the adsorption isotherms for imprinted materials, so as to obtain information about the range of binding affinities characterizing the imprinted sites, are summarized.
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46
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Qian L, Hu X, Guan P, Wang D, Li J, Du C, Song R. An effective way to imprint protein with the preservation of template structure by using a macromolecule as the functional monomer. RSC Adv 2015. [DOI: 10.1039/c5ra08246c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A novel strategy of using a macromolecular functional monomer to stabilize and imprint protein was proposed for the first time.
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Affiliation(s)
- Liwei Qian
- School of Natural and Applied Science
- Northwestern Polytechnical University
- Xi'an 710072
- China
| | - Xiaoling Hu
- School of Natural and Applied Science
- Northwestern Polytechnical University
- Xi'an 710072
- China
| | - Ping Guan
- School of Natural and Applied Science
- Northwestern Polytechnical University
- Xi'an 710072
- China
| | - Dan Wang
- School of Natural and Applied Science
- Northwestern Polytechnical University
- Xi'an 710072
- China
| | - Ji Li
- School of Natural and Applied Science
- Northwestern Polytechnical University
- Xi'an 710072
- China
| | - Chunbao Du
- School of Natural and Applied Science
- Northwestern Polytechnical University
- Xi'an 710072
- China
| | - Renyuan Song
- School of Natural and Applied Science
- Northwestern Polytechnical University
- Xi'an 710072
- China
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47
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Wu X, Li Y, Wu Q, Ding H, Yan W. The invertible electrochemical properties and thermal response of a series of gel-type ionic liquids based on polyoxometalates. Phys Chem Chem Phys 2014; 16:24598-603. [DOI: 10.1039/c4cp03673e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper is about the invertible electrochemical and thermal response properties of several gel-type ionic liquids based on polyoxometalates.
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Affiliation(s)
- Xuefei Wu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027, PR China
| | - Yunyan Li
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027, PR China
| | - Qingyin Wu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027, PR China
| | - Hong Ding
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012, PR China
| | - Wenfu Yan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- Jilin University
- Changchun 130012, PR China
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